Post-Effective Amendment to Post-Effective Amendment by Investment Company (Form 485BXT)

Securities Act Registration No. 333-204808

Investment Company Act Registration No. 811-23066

As filed with the Securities and Exchange Commission on April 6, 2026

SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ý

(Check appropriate box or boxes.)

Northern Lights Fund Trust IV

(Exact Name of Registrant as Specified in Charter)

225 Pictoria Drive, Suite 450, Cincinnati, OH 45246

(Address of Principal Executive Offices) (Zip Code)

Registrant's Telephone Number, including Area Code: (631) 490-4300

The Corporation Trust Company

1209 Orange Street

Wilmington, DE 19801

(Name and Address of Agent for Service)

With copy to:

Approximate date of proposed public offering: As soon as practicable after the effective date of the Registration Statement.

It is proposed that this filing will become effective:

() Immediately upon filing pursuant to paragraph (b)

(X) On April 21, 2026 pursuant to paragraph (b)

() 60 days after filing pursuant to paragraph (a)(1)

() On (date) pursuant to paragraph (a)(1)

() 75 days after filing pursuant to paragraph (a)(2)

() On (date) pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box:

(X) This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

The sole purpose of this filing is to delay the effectiveness of the Trust's Post-Effective Amendment No. 379 to its Registration Statement until April 21, 2026. Post-Effective Amendment No. 379 to the Trust's Registration Statement relates to the Monarch Blue Chips Core Index ETF. Parts A, B and C of Registrant's Post-Effective Amendment No. 379 under the Securities Act of 1933 and Amendment No. 382 under the Investment Company Act of 1940, filed on January 29, 2026, are incorporated by reference herein.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this registration statement under 485(b) under the Securities Act and has duly caused this registration statement to be signed on its behalf by the undersigned, duly authorized, in the City of Hauppauge, State of New York, on the 6^th day of April, 2026.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following person in the capacities indicated on April 6, 2026.